return 0;
}
- if (param == 'f') {
- ShowWaitCycles = true;
- }
+ ShowWaitCycles = (param == 'f');
- uint8_t trace[TRACE_BUFFER_SIZE];
- GetFromBigBuf(trace,TRACE_BUFFER_SIZE,0);
+// for the time being. Need better Bigbuf handling.
+#define TRACE_SIZE 3000
+
+ uint8_t trace[TRACE_SIZE];
+ GetFromBigBuf(trace, TRACE_SIZE, 0);
WaitForResponse(CMD_ACK,NULL);
PrintAndLog("Recorded Activity");
PrintAndLog("Start = Start of Start Bit, End = End of last modulation. Src = Source of Transfer");
PrintAndLog("All times are in carrier periods (1/13.56Mhz)");
PrintAndLog("");
- PrintAndLog(" Start | End | Src | Data");
- PrintAndLog("-----------|-----------|-----|--------");
+ PrintAndLog(" Start | End | Src | Data (! denotes parity error) | CRC ");
+ PrintAndLog("-----------|-----------|-----|-----------------------------------------------------------------------");
uint16_t tracepos = 0;
uint16_t duration;
for (;;) {
- if( tracepos >= TRACE_BUFFER_SIZE) break;
+ if(tracepos >= TRACE_SIZE) break;
timestamp = *((uint32_t *)(trace + tracepos));
+
+ // Break and stick with current result if buffer was not completely full
+ if (timestamp == 0x44444444) break;
+
if(tracepos == 0) {
first_timestamp = timestamp;
}
+
tracepos += 4;
duration = *((uint16_t *)(trace + tracepos));
tracepos += 2;
data_len = *((uint16_t *)(trace + tracepos));
tracepos += 2;
+ isResponse = false;
if (data_len & 0x8000) {
data_len &= 0x7fff;
isResponse = true;
- } else {
- isResponse = false;
}
-
+
parity_len = (data_len-1)/8 + 1;
-
-
- if (tracepos + data_len + parity_len >= TRACE_BUFFER_SIZE) { break; }
+
+ if (tracepos + data_len + parity_len >= TRACE_SIZE) break;
uint8_t *frame = trace + tracepos;
tracepos += data_len;
uint8_t *parityBytes = trace + tracepos;
tracepos += parity_len;
-
- // Break and stick with current result if buffer was not completely full
- if (timestamp == 0x44444444) break;
-
- char line[1000] = "";
- int j;
- for (j = 0; j < data_len; j++) {
+
+ char line[16][110];
+ for (int j = 0; j < data_len; j++) {
int oddparity = 0x01;
int k;
uint8_t parityBits = parityBytes[j>>3];
if (isResponse && (oddparity != ((parityBits >> (7-(j&0x0007))) & 0x01))) {
- sprintf(line+(j*4), "%02x! ", frame[j]);
+ sprintf(line[j/16]+((j%16)*4), "%02x! ", frame[j]);
} else {
- sprintf(line+(j*4), "%02x ", frame[j]);
+ sprintf(line[j/16]+((j%16)*4), "%02x ", frame[j]);
}
}
-
- char crc[6] = "";
+
+ char crc[5] = {0x00};
if (data_len > 2) {
uint8_t b1, b2;
ComputeCrc14443(CRC_14443_A, frame, data_len-2, &b1, &b2);
if (b1 != frame[data_len-2] || b2 != frame[data_len-1]) {
- sprintf(crc, (isResponse & (data_len < 6)) ? "" : " !crc");
- } else {
- sprintf(crc, "");
- }
+ sprintf(crc, (isResponse & (data_len < 6)) ? "" : "!crc");
+ }
+ }
EndOfTransmissionTimestamp = timestamp + duration;
-
- PrintAndLog(" %9d | %9d | %s | %s %s",
- (timestamp - first_timestamp),
- (EndOfTransmissionTimestamp - first_timestamp),
- (isResponse ? "Tag" : "Rdr"),
- line,
- crc);
+ int num_lines = (data_len - 1)/16 + 1;
+
+ for (int j = 0; j < num_lines; j++) {
+ if (j == 0) {
+ PrintAndLog(" %9d | %9d | %s | %-64s| %s",
+ (timestamp - first_timestamp),
+ (EndOfTransmissionTimestamp - first_timestamp),
+ (isResponse ? "Tag" : "Rdr"),
+ line[j],
+ (j == num_lines-1)?crc:""
+ );
+ } else {
+ PrintAndLog(" | | | %-64s| %s",
+ line[j],
+ (j == num_lines-1)?crc:"");
+ }
+ }
bool next_isResponse = *((uint16_t *)(trace + tracepos + 6)) & 0x8000;
+
if (ShowWaitCycles && !isResponse && next_isResponse) {
uint32_t next_timestamp = *((uint32_t *)(trace + tracepos));
if (next_timestamp != 0x44444444) {
- PrintAndLog(" %9d | %9d | %s | fdt (Frame Delay Time): %d",
- (EndOfTransmissionTimestamp - first_timestamp),
- (next_timestamp - first_timestamp),
- " ",
- (next_timestamp - EndOfTransmissionTimestamp));
- }
+ PrintAndLog(" %9d | %9d | %s | fdt (Frame Delay Time): %d",
+ (EndOfTransmissionTimestamp - first_timestamp),
+ (next_timestamp - first_timestamp),
+ " ",
+ (next_timestamp - EndOfTransmissionTimestamp));
}
- }
+ }
}
return 0;
}
int CmdHF14AReader(const char *Cmd)
{
- UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT, 0, 0}};
+ UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT | ISO14A_NO_DISCONNECT, 0, 0}};
SendCommand(&c);
UsbCommand resp;
WaitForResponse(CMD_ACK,&resp);
- iso14a_card_select_t *card = (iso14a_card_select_t *)resp.d.asBytes;
+ iso14a_card_select_t card;
+ memcpy(&card, (iso14a_card_select_t *)resp.d.asBytes, sizeof(iso14a_card_select_t));
- if(resp.arg[0] == 0) {
+ uint64_t select_status = resp.arg[0]; // 0: couldn't read, 1: OK, with ATS, 2: OK, no ATS
+
+ if(select_status == 0) {
PrintAndLog("iso14443a card select failed");
+ // disconnect
+ c.arg[0] = 0;
+ c.arg[1] = 0;
+ c.arg[2] = 0;
+ SendCommand(&c);
return 0;
}
- PrintAndLog("ATQA : %02x %02x", card->atqa[0], card->atqa[1]);
- PrintAndLog(" UID : %s", sprint_hex(card->uid, card->uidlen));
- PrintAndLog(" SAK : %02x [%d]", card->sak, resp.arg[0]);
+ PrintAndLog("ATQA : %02x %02x", card.atqa[1], card.atqa[0]);
+ PrintAndLog(" UID : %s", sprint_hex(card.uid, card.uidlen));
+ PrintAndLog(" SAK : %02x [%d]", card.sak, resp.arg[0]);
- switch (card->sak) {
+ switch (card.sak) {
case 0x00: PrintAndLog("TYPE : NXP MIFARE Ultralight | Ultralight C"); break;
- case 0x01: PrintAndLog("TYPE : NXP TNP3xxx Activision Game Appliance"); break;
+ case 0x01: PrintAndLog("TYPE : NXP TNP3xxx Activision Game Appliance"); break;
case 0x04: PrintAndLog("TYPE : NXP MIFARE (various !DESFire !DESFire EV1)"); break;
case 0x08: PrintAndLog("TYPE : NXP MIFARE CLASSIC 1k | Plus 2k SL1"); break;
case 0x09: PrintAndLog("TYPE : NXP MIFARE Mini 0.3k"); break;
case 0x98: PrintAndLog("TYPE : Gemplus MPCOS"); break;
default: ;
}
- if(resp.arg[0] == 1) {
+
+
+ // try to request ATS even if tag claims not to support it
+ if (select_status == 2) {
+ uint8_t rats[] = { 0xE0, 0x80 }; // FSDI=8 (FSD=256), CID=0
+ c.arg[0] = ISO14A_RAW | ISO14A_APPEND_CRC | ISO14A_NO_DISCONNECT;
+ c.arg[1] = 2;
+ c.arg[2] = 0;
+ memcpy(c.d.asBytes, rats, 2);
+ SendCommand(&c);
+ WaitForResponse(CMD_ACK,&resp);
+
+ memcpy(&card.ats, resp.d.asBytes, resp.arg[0]);
+ card.ats_len = resp.arg[0]; // note: ats_len includes CRC Bytes
+ }
+
+ if(card.ats_len >= 3) { // a valid ATS consists of at least the length byte (TL) and 2 CRC bytes
bool ta1 = 0, tb1 = 0, tc1 = 0;
int pos;
- PrintAndLog(" ATS : %s", sprint_hex(card->ats, card->ats_len));
- if (card->ats_len > 0) {
- PrintAndLog(" - TL : length is %d bytes", card->ats[0]);
+ if (select_status == 2) {
+ PrintAndLog("SAK incorrectly claims that card doesn't support RATS");
+ }
+ PrintAndLog(" ATS : %s", sprint_hex(card.ats, card.ats_len));
+ PrintAndLog(" - TL : length is %d bytes", card.ats[0]);
+ if (card.ats[0] != card.ats_len - 2) {
+ PrintAndLog("ATS may be corrupted. Length of ATS (%d bytes incl. 2 Bytes CRC) doesn't match TL", card.ats_len);
}
- if (card->ats_len > 1) {
- ta1 = (card->ats[1] & 0x10) == 0x10;
- tb1 = (card->ats[1] & 0x20) == 0x20;
- tc1 = (card->ats[1] & 0x40) == 0x40;
+
+ if (card.ats[0] > 1) { // there is a format byte (T0)
+ ta1 = (card.ats[1] & 0x10) == 0x10;
+ tb1 = (card.ats[1] & 0x20) == 0x20;
+ tc1 = (card.ats[1] & 0x40) == 0x40;
+ int16_t fsci = card.ats[1] & 0x0f;
PrintAndLog(" - T0 : TA1 is%s present, TB1 is%s present, "
- "TC1 is%s present, FSCI is %d",
+ "TC1 is%s present, FSCI is %d (FSC = %ld)",
(ta1 ? "" : " NOT"), (tb1 ? "" : " NOT"), (tc1 ? "" : " NOT"),
- (card->ats[1] & 0x0f));
+ fsci,
+ fsci < 5 ? (fsci - 2) * 8 :
+ fsci < 8 ? (fsci - 3) * 32 :
+ fsci == 8 ? 256 :
+ -1
+ );
}
pos = 2;
- if (ta1 && card->ats_len > pos) {
+ if (ta1) {
char dr[16], ds[16];
dr[0] = ds[0] = '\0';
- if (card->ats[pos] & 0x10) strcat(ds, "2, ");
- if (card->ats[pos] & 0x20) strcat(ds, "4, ");
- if (card->ats[pos] & 0x40) strcat(ds, "8, ");
- if (card->ats[pos] & 0x01) strcat(dr, "2, ");
- if (card->ats[pos] & 0x02) strcat(dr, "4, ");
- if (card->ats[pos] & 0x04) strcat(dr, "8, ");
+ if (card.ats[pos] & 0x10) strcat(ds, "2, ");
+ if (card.ats[pos] & 0x20) strcat(ds, "4, ");
+ if (card.ats[pos] & 0x40) strcat(ds, "8, ");
+ if (card.ats[pos] & 0x01) strcat(dr, "2, ");
+ if (card.ats[pos] & 0x02) strcat(dr, "4, ");
+ if (card.ats[pos] & 0x04) strcat(dr, "8, ");
if (strlen(ds) != 0) ds[strlen(ds) - 2] = '\0';
if (strlen(dr) != 0) dr[strlen(dr) - 2] = '\0';
PrintAndLog(" - TA1 : different divisors are%s supported, "
"DR: [%s], DS: [%s]",
- (card->ats[pos] & 0x80 ? " NOT" : ""), dr, ds);
+ (card.ats[pos] & 0x80 ? " NOT" : ""), dr, ds);
pos++;
}
- if (tb1 && card->ats_len > pos) {
- PrintAndLog(" - TB1 : SFGI = %d, FWI = %d",
- (card->ats[pos] & 0x08),
- (card->ats[pos] & 0x80) >> 4);
+ if (tb1) {
+ uint32_t sfgi = card.ats[pos] & 0x0F;
+ uint32_t fwi = card.ats[pos] >> 4;
+ PrintAndLog(" - TB1 : SFGI = %d (SFGT = %s%ld/fc), FWI = %d (FWT = %ld/fc)",
+ (sfgi),
+ sfgi ? "" : "(not needed) ",
+ sfgi ? (1 << 12) << sfgi : 0,
+ fwi,
+ (1 << 12) << fwi
+ );
pos++;
}
- if (tc1 && card->ats_len > pos) {
+ if (tc1) {
PrintAndLog(" - TC1 : NAD is%s supported, CID is%s supported",
- (card->ats[pos] & 0x01) ? "" : " NOT",
- (card->ats[pos] & 0x02) ? "" : " NOT");
+ (card.ats[pos] & 0x01) ? "" : " NOT",
+ (card.ats[pos] & 0x02) ? "" : " NOT");
pos++;
}
- if (card->ats_len > pos) {
+ if (card.ats[0] > pos) {
char *tip = "";
- if (card->ats_len - pos > 7) {
- if (memcmp(card->ats + pos, "\xC1\x05\x2F\x2F\x01\xBC\xD6", 7) == 0) {
+ if (card.ats[0] - pos >= 7) {
+ if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x01\xBC\xD6", 7) == 0) {
tip = "-> MIFARE Plus X 2K or 4K";
- } else if (memcmp(card->ats + pos, "\xC1\x05\x2F\x2F\x00\x35\xC7", 7) == 0) {
+ } else if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x00\x35\xC7", 7) == 0) {
tip = "-> MIFARE Plus S 2K or 4K";
}
}
- PrintAndLog(" - HB : %s%s", sprint_hex(card->ats + pos, card->ats_len - pos - 2), tip);
- if (card->ats[pos] == 0xC1) {
+ PrintAndLog(" - HB : %s%s", sprint_hex(card.ats + pos, card.ats[0] - pos), tip);
+ if (card.ats[pos] == 0xC1) {
PrintAndLog(" c1 -> Mifare or (multiple) virtual cards of various type");
PrintAndLog(" %02x -> Length is %d bytes",
- card->ats[pos + 1], card->ats[pos + 1]);
- switch (card->ats[pos + 2] & 0xf0) {
+ card.ats[pos + 1], card.ats[pos + 1]);
+ switch (card.ats[pos + 2] & 0xf0) {
case 0x10:
PrintAndLog(" 1x -> MIFARE DESFire");
break;
PrintAndLog(" 2x -> MIFARE Plus");
break;
}
- switch (card->ats[pos + 2] & 0x0f) {
+ switch (card.ats[pos + 2] & 0x0f) {
case 0x00:
PrintAndLog(" x0 -> <1 kByte");
break;
PrintAndLog(" x0 -> 8 kByte");
break;
}
- switch (card->ats[pos + 3] & 0xf0) {
+ switch (card.ats[pos + 3] & 0xf0) {
case 0x00:
PrintAndLog(" 0x -> Engineering sample");
break;
PrintAndLog(" 2x -> Released");
break;
}
- switch (card->ats[pos + 3] & 0x0f) {
+ switch (card.ats[pos + 3] & 0x0f) {
case 0x00:
PrintAndLog(" x0 -> Generation 1");
break;
PrintAndLog(" x2 -> Generation 3");
break;
}
- switch (card->ats[pos + 4] & 0x0f) {
+ switch (card.ats[pos + 4] & 0x0f) {
case 0x00:
PrintAndLog(" x0 -> Only VCSL supported");
break;
}
}
} else {
- PrintAndLog("proprietary non iso14443a-4 card found, RATS not supported");
+ PrintAndLog("proprietary non iso14443-4 card found, RATS not supported");
}
- return resp.arg[0];
+
+ // try to see if card responses to "chinese magic backdoor" commands.
+ c.cmd = CMD_MIFARE_CIDENT;
+ c.arg[0] = 0;
+ c.arg[1] = 0;
+ c.arg[2] = 0;
+ SendCommand(&c);
+ WaitForResponse(CMD_ACK,&resp);
+ uint8_t isOK = resp.arg[0] & 0xff;
+ PrintAndLog(" Answers to chinese magic backdoor commands: %s", (isOK ? "YES" : "NO") );
+
+ // disconnect
+ c.cmd = CMD_READER_ISO_14443a;
+ c.arg[0] = 0;
+ c.arg[1] = 0;
+ c.arg[2] = 0;
+ SendCommand(&c);
+
+ return select_status;
}
// Collect ISO14443 Type A UIDs
UsbCommand resp;
WaitForResponse(CMD_ACK,&resp);
- uint8_t *uid = resp.d.asBytes;
- iso14a_card_select_t *card = (iso14a_card_select_t *)(uid + 12);
+ iso14a_card_select_t *card = (iso14a_card_select_t *) resp.d.asBytes;
// check if command failed
if (resp.arg[0] == 0) {
PrintAndLog("Card select failed.");
} else {
- // check if UID is 4 bytes
- if ((card->atqa[1] & 0xC0) == 0) {
- PrintAndLog("%02X%02X%02X%02X",
- *uid, *(uid + 1), *(uid + 2), *(uid + 3));
- } else {
- PrintAndLog("UID longer than 4 bytes");
+ char uid_string[20];
+ for (uint16_t i = 0; i < card->uidlen; i++) {
+ sprintf(&uid_string[2*i], "%02X", card->uid[i]);
}
+ PrintAndLog("%s", uid_string);
}
}
PrintAndLog("End: %u", time(NULL));
if (param_getchar(Cmd, 0) == 'h') {
PrintAndLog("It get data from the field and saves it into command buffer.");
- PrintAndLog("Buffer accessible from command hf 14a list.");
+ PrintAndLog("Buffer accessible from command hf list 14a.");
PrintAndLog("Usage: hf 14a snoop [c][r]");
PrintAndLog("c - triggered by first data from card");
PrintAndLog("r - triggered by first 7-bit request from reader (REQ,WUP,...)");
static command_t CommandTable[] =
{
{"help", CmdHelp, 1, "This help"},
- {"list", CmdHF14AList, 0, "List ISO 14443a history"},
+ {"list", CmdHF14AList, 0, "[Deprecated] List ISO 14443a history"},
{"reader", CmdHF14AReader, 0, "Act like an ISO14443 Type A reader"},
{"cuids", CmdHF14ACUIDs, 0, "<n> Collect n>0 ISO14443 Type A UIDs in one go"},
{"sim", CmdHF14ASim, 0, "<UID> -- Fake ISO 14443a tag"},
projects / proxmark3-svn / blobdiff